<?xml version="1.0" encoding="UTF-8"?>
<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://ftp.ebi.ac.uk/pub/databases/em_ebi/emdb_related/emdb-schemas/emdb_schemas/v3/v3_0_9_1/emdb.xsd" version="3.0.9.1" emdb_id="EMD-26864">
    <admin>
        <current_status>
            <date>2024-01-17</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2022-05-06</deposition>
            <header_release>2022-07-13</header_release>
            <map_release>2022-07-13</map_release>
            <update>2024-01-17</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>R35GM131901</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Science Foundation (NSF, United States)</funding_body>
                <code>MCB2016540</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>R01GM071940</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Tetrahymena telomerase with CST-PolaPrim</title>
        <authors_list>
            <author ORCID="0000-0002-1368-6422">He Y</author>
            <author>Song H</author>
            <author>Chan H</author>
            <author>Wang Y</author>
            <author>Liu B</author>
            <author>Susac L</author>
            <author>Zhou ZH</author>
            <author ORCID="0000-0003-3376-435X">Feigon J</author>
        </authors_list>
        <keywords>telomerase, RNP, CST, polymerase, REPLICATION</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author ORCID="0000-0002-1368-6422" order="1">He Y</author>
                    <author order="2">Song H</author>
                    <author order="3">Chan H</author>
                    <author ORCID="0000-0001-7895-9455" order="4">Liu B</author>
                    <author ORCID="0000-0002-6822-4778" order="5">Wang Y</author>
                    <author order="6">Susac L</author>
                    <author ORCID="0000-0002-8373-4717" order="7">Zhou ZH</author>
                    <author ORCID="0000-0003-3376-435X" order="8">Feigon J</author>
                    <title>Structure of Tetrahymena telomerase-bound CST with polymerase alpha-primase.</title>
                    <journal_abbreviation>Nature</journal_abbreviation>
                    <country>UK</country>
                    <volume>608</volume>
                    <first_page>813</first_page>
                    <last_page>818</last_page>
                    <year>2022</year>
                    <external_references type="PUBMED">35831498</external_references>
                    <external_references type="DOI">doi:10.1038/s41586-022-04931-7</external_references>
                    <external_references type="ISSN">1476-4687</external_references>
                    <external_references type="CSD">0006</external_references>
                    <external_references type="ASTM">NATUAS</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-26863</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-26865</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-26866</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-26867</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-26868</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
            <emdb_reference>
                <emdb_id>EMD-26869</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
    </crossreferences>
    <sample>
        <name>Tetrahymena telomerase holoenzyme with Polymerase a-Primase</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Tetrahymena telomerase holoenzyme with Polymerase a-Primase</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>3</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>4</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>5</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>6</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>7</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>8</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>9</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>10</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>11</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="2">
                <name>Tetrahymena telomerase holoenzyme</name>
                <parent>1</parent>
                <natural_source database="NCBI">
                    <organism ncbi="5911">Tetrahymena thermophila</organism>
                </natural_source>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="3">
                <name>Tetrahymena DNA polymerase alpha-primase</name>
                <parent>1</parent>
                <natural_source database="NCBI">
                    <organism ncbi="5911">Tetrahymena thermophila</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
            <specimen_preparation_list>
                <single_particle_preparation preparation_id="1">
                    <buffer>
                        <ph>8.0</ph>
                    </buffer>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TITAN KRIOS</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">300</acceleration_voltage>
                    <nominal_defocus_min units="µm">0.8</nominal_defocus_min>
                    <nominal_defocus_max units="µm">4.0</nominal_defocus_max>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K3 (6k x 4k)</film_or_detector_model>
                            <average_electron_dose_per_image units="e/Å^2">55.0</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <startup_model type_of_model="EMDB MAP">
                    <emdb_id>EMD-23437</emdb_id>
                </startup_model>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">4.4</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <number_images_used>142912</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>MAXIMUM LIKELIHOOD</type>
                </final_angle_assignment>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="256001">
        <file>emd_26864.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>400</col>
            <row>400</row>
            <sec>400</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>400</x>
            <y>400</y>
            <z>400</z>
        </spacing>
        <cell>
            <a units="Å">440.0</a>
            <b units="Å">440.0</b>
            <c units="Å">440.0</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">90.0</beta>
            <gamma units="deg">90.0</gamma>
        </cell>
        <axis_order>
            <fast>X</fast>
            <medium>Y</medium>
            <slow>Z</slow>
        </axis_order>
        <statistics>
            <minimum>-0.009486365</minimum>
            <maximum>0.04001887</maximum>
            <average>0.00004821297</average>
            <std>0.0014265402</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.1</x>
            <y units="Å">1.1</y>
            <z units="Å">1.1</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.012</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-26864::::</label>
        <annotation_details>full map</annotation_details>
    </map>
    <interpretation>
        <segmentation_list>
            <segmentation>
                <file>emd_26864_msk_1.map</file>
            </segmentation>
        </segmentation_list>
        <half_map_list>
            <half_map format="CCP4" size_kbytes="256001">
                <file>emd_26864_half_map_1.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>400</col>
                    <row>400</row>
                    <sec>400</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>400</x>
                    <y>400</y>
                    <z>400</z>
                </spacing>
                <cell>
                    <a units="Å">440.0</a>
                    <b units="Å">440.0</b>
                    <c units="Å">440.0</c>
                    <alpha units="deg">90.0</alpha>
                    <beta units="deg">90.0</beta>
                    <gamma units="deg">90.0</gamma>
                </cell>
                <axis_order>
                    <fast>X</fast>
                    <medium>Y</medium>
                    <slow>Z</slow>
                </axis_order>
                <statistics>
                    <minimum>-0.014551173</minimum>
                    <maximum>0.04350959</maximum>
                    <average>0.000041617583</average>
                    <std>0.0017525672</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">1.1</x>
                    <y units="Å">1.1</y>
                    <z units="Å">1.1</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-26864::::</label>
                <annotation_details>half map 2</annotation_details>
            </half_map>
            <half_map format="CCP4" size_kbytes="256001">
                <file>emd_26864_half_map_2.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>400</col>
                    <row>400</row>
                    <sec>400</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>400</x>
                    <y>400</y>
                    <z>400</z>
                </spacing>
                <cell>
                    <a units="Å">440.0</a>
                    <b units="Å">440.0</b>
                    <c units="Å">440.0</c>
                    <alpha units="deg">90.0</alpha>
                    <beta units="deg">90.0</beta>
                    <gamma units="deg">90.0</gamma>
                </cell>
                <axis_order>
                    <fast>X</fast>
                    <medium>Y</medium>
                    <slow>Z</slow>
                </axis_order>
                <statistics>
                    <minimum>-0.014479474</minimum>
                    <maximum>0.042872787</maximum>
                    <average>0.000042389867</average>
                    <std>0.0017563521</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">1.1</x>
                    <y units="Å">1.1</y>
                    <z units="Å">1.1</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::EMD-26864::::</label>
                <annotation_details>half map 1</annotation_details>
            </half_map>
        </half_map_list>
    </interpretation>
</emd>
